Slab and core holder.



PATENTED SEPT. 17, 1907.

. W. J. EVANS.

SLAB AND CORE HOLDER. APPLICATION nun FEB. 11. 1907;

WITNESSES 1 [N/V/E/VTOR /L (1111 J 14 1/0115.

WILLIAM J. EVANS, OF ASPINWALL, PENNSYLVANIA.

sLAs AND cons: nonnnn.

Specification of Letters Patent.

' Patented Sept. 17, 1907.

Application filed February 11,1907. Seria1No.356,92'7.

To-all whom it may concern:

Be it known that 1, WILLIAM J. EvANs, a citizen of the'United States ofAmerica, residing at llspinwall, in the county of Allegheny and State ofPennsylvania,

have invented certain new and useful Improvementsv in Slab and GoreHolders, of which the following is a specificatiomreierence being hadtherein to the accompanying drawing.

' This invention relates to slab and core holders, and the invention hasforits object to provide positive and reliable means for suspending aslab or core within amold..

My invention aims to provide a novel holder for gripping, temporarilyholding, and correctly positioning a "slab within a mold. In thisconnection, my improved holder is designed for suspending soft metalslabs in niolds of that type commonly styled two-part molds.

", Thaslabs are used in the production of ingots having soft metalcenters, the ingots being used in the marin factu're oi plow shares andsimilar articles.

My invehtion further aims to dispense with the nuiner'ous devicesheretofore employed for supporting and properly positioning a slabwithin a mold; It has been the practice to use small billets and tubesfor supporting a slab in a mold, but in order to correctly position aslab,-the slabs have been heretofore sawed to obtain an even supportingbase or bottom. The sawipg of the slabs necessitates considerable timeand labor, and in alone dispensing with this operation, I expedite thepreparation of a mold for pouring, andadd a meritorious feature to myinvention.

p In 'diSPensing with the billets, tubes, and like devices for holding aslab, I dispense with thetedious operation of correctly centering aslabin a mold, besides obviating the necessity of pouring the molten metalin to the top of the mold. To-this end, I have devised a resilientholder which is substantially triangular, the holder being sprung intoengagement with the edge of the slab and also providing a grooved orcifically pointed out in the appended claims, and referring to thedrawing forming part of this application,

like numerals of reference designate corresponding parts throughout theseveral views, in which:

Figurel is a vertical sectional View of a conventional casting pit,channels, and molds, and the slabs suspend ed within said molds by theemployed device, Fig. 2 is a plan view of one of the moldsillustratingthe slab suspended therein, Fig. 3 is a perspective view enlarged of myimproved triangular shaped resilient holder, Fig.

fl. is a perspective view of the baror cross head employedtoil'siipportingthe holder and slab.

In the accompanying drawing, 1 designates a casting pit in the bottom ofwhich is located a metal conveying spider consisting of a hub 2 havingradiating channels S. Upon the hub Zis constructeda center fountain 4,while upon the channels 3 are placed twopart molds 5. The molds 5 are ofa conventional form comprising two sections 6 connected together by lugsand pins 7. The channels3 are provided with open:

, ings 8, through which the molten metal is adapted to pass into themolds 5, said metal being poured from a ladle or similar receptacleindicated by dotted lines at 8 into the center fountain '4 from whenceit is distributed though the medium of the hub 2 to thenumerousradiating arms of the metal conveying spider and flows upward into themolds through the apertures 8. The construction just described iscommonly used in the up-pouring method of producing ingots having soft'metal centers, and I have simply described this construction in orderthat the use of my improved holder will be readily understood as used inconnection with the same. 7

Soft metal slabs 9 having been provided; the samenear their edgesareprovided with notches or recesses 10 in order to receive the inturnedends 14 of the improved holder 12; and thus firmly hold a slab. The

holder is preferably made of a metal rod bent centrally to provide aloop 11 and curved arms 12, the

ends of said arms being provided with inwardly extending lugs 14 adaptedto engage in the notches or recesses 10 of the slab. i The loop 11corresponds to the convolution of a spring, and imparts a resiliency tothe holder and permits the arms 12 to be sprung apart and the holderplaced in engagement with the edge of the slab and be held in engagementwith the slab by the resili-.

ency of the holder.

In connection with the holder 9, I use a bar or cross head 15 having atransverse groove 16 formed centrally therein, in which the loop 11 ofthe holder rests, when one of the bars 15 is placed in said loop. Afterthe holder has been placed in engagement with a soft metal slab, and thebar 15 passed through the loop 11 of said holder, the slab is loweredinto the mold, said slab being suspended from the top edges of the molddirectly above one of the openings 8 of the channel 3. extremely simpleoperation to center a slab within a mold, as a person skilled in the artcan easily determine at a glance whether the slab is plumb orequidistant from the sides of the mold.

After. the molten metal has been poured into the center fountain 4through the channels 3 and into the mold 5 to surround and cover theslab, the mold is gripped and bodily removed from the casting pit, per--mitted to cool, and then the parts of the mold separated and removedfrom the ingot; The bar 15 is then removed from the holder in order thatit may be used again, andthen the holderis cut or broken from the ingot,partsof the arms 12 remaining in the ingot.

It is an From the foregoing description taken in conneetion with thedrawing, it will be observed that I have devised asimple and inexpensiveholder for suspending slabs in molds, and in this ,connection I desireit to be understood that the holders can be readily used in connectionwith anytype of mold or pouring device employed for producing ingotshaving soft ,metal centers. i

What I clainl and desire to secure by Letters Patent, is:

The combination with a mold, of a slab having oppositely disposedrecesses near the upper end, a holder formed from 1 single piece of wirebent centrally into a loop and with outwardly curving resilient armshaving inturned terminals adapted to yieldubly engage the recesses insaid slab, and a bar bearing upon the upper face of the mold andextending through the loop of the holder and with a flat upper faceprovided with a transverse recess with which the material of the loopengages, whereby the loop is suspended within the mold and preventedfrom rotating therein.

lntestirnony whereof I utlix my signature in the presence of twowitnesses.

WILLIAM J. EYANS.

Witnesses K. H. BUTLER, MAX II. SuoLoviTz.

